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7

Set 4: Function Notation (Beginner)

Explanation

Answer: A

PROBLEM

If f(x) = 5x + 6, find f(10).

If f(x) = 5x + 6, find f(10).

A.

56

✓ Correct
B.

58

C.

55

D.

53

Detailed Explanation

Choice A is the best answer. f(10) = 5(10) + 6 = 50 + 6 = 56

Why others are wrong:
B: 58 is incorrect because it does not satisfy the equation.
C: 55 is incorrect because it does not satisfy the equation.
D: 53 is incorrect because it does not satisfy the equation.
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